radical

radicalrad‧i‧cal1 /ˈrædɪkəl/ ●●○W3AWL adjective1change/differenceVERY a radical change or difference is very big and important opp slightThey are proposing radical changes to the way the company is run.a radical reform of the tax systemThere are radical differences between the two organizations.2opinionsPPP radical ideas are very new and different, and are against what most people think or believe → conservativeHe has put forward some very radical ideas.I was shocked by her radical views.a radical approach to education3people someone who is radical has ideas that are very new and different, and against what most people think or believea radical left-wing politiciana radical feminist4good American English informalENJOY/LIKE DOING something very good or enjoyableThat was one radical party last night!COLLOCATIONSnounsa radical changeIf that offer is serious, it will mark a radical change in policy.a radical transformation (=a complete change in appearance, especially when this is an improvement)The city has undergone a radical transformation.radical measures (=extreme actions)Instead of retreating, he suggested even more radical measures.radical reform (=big changes to a system or organization in order to improve it)He said the institution was in need of radical reform.a radical overhaul (=big changes in order to improve something)government plans for a radical overhaul of the health care systema radical differenceThere is a radical difference between this and other dieting methods.a radical departure (=something very different)The design of the building is a radical departure from tradition.a radical rethink (=when you think about a plan or idea again in a very different way)The Conservative Party leader called for a radical rethink of economic policy.

radicalradical2 ●○○AWL noun [countable]PPGsomeone who has new and different ideas, especially someone who wants complete social and political change → conservativeradicals on the extreme left wing of the party —radicalism noun [uncountable]